Defender
Platform: TI-99/4A
Region: USA
Media: Cartridge
Controller: Joystick
Genre: Arcade - Shooter - Side-Scrolling
Gametype: Licensed
Release Year: 1983
Developer: Williams Electronics Inc.
Publisher: Atarisoft
Players: 1
Licensed from: Williams Electronics Inc.
Designer: Eugene Jarvis
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Defender put players in charge of a ship sent to protect mankind from wave after wave of attacking alien forces.

Armed with smart bombs and the ability to use hyperspace to move quickly around the planet, the player ship must fight against Bombers, Pods, Swarmers, Baiters, and Landers - that can capture the humanoids and transform them into deadly and relentless Mutants. Fail to save the humanoids from freefall or Mutant transformation, and the planet is destroyed.

Trivia:

References to the game

Defender a song inspired by it on the full-length Pac-Man Fever album - The Defender.
In the 1983 episode Smaller Than Life from the TV series Magnum P.I., a kid is seen playing Defender on an Atari 800.

http://www.mobygames.com/game/ti-994a/defender
